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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE-MAIN 2020
If the term independent of $x$ in the expansion of $\left(\frac{3}{2} x^2-\frac{1}{3 x}\right)^9$ is $k$, then $18 k$ is equal to :
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Q JEE MAIN 2020
The sum of the total number of bonds between chromium and oxygen atoms in chromate and dichromate ions is ____________ .
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Q JEE MAIN 2020
The IUPAC name of the following compound is
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Q JEE-MAIN 2020
Let $e_1$ and $e_2$ be the eccentricities of the ellipse, $\frac{x^2}{25}+\frac{y^2}{b^2}=1(b<5)$ and the hyperbola, $\frac{x^2}{16}+\frac{y^2}{b^2}=1$ respectively satisfying $e_1 e_2=1$. If $\alpha$ and $\beta$ are the...
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Q JEE MAIN 2020
The major product [C] of the following reaction sequence will be
JEE Main Chemistry Medium
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Q JEE MAIN 2020
Which of the following statements is a tautology?
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Q JEE MAIN 2020
The decreasing order of reactivity of the following organic molecules towards $\mathrm{AgNO}_3$ solution is
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Q JEE MAIN 2020
10.30 mg of $\mathrm{O}_2$ is dissolved into a litre of sea water of density $1.03 \mathrm{~g} / \mathrm{mL}$. The concentration of $\mathrm{O}_2$ in ppm is...
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Q JEE MAIN 2020
The mirror image of the point $(1,2,3)$ in a plane is $\left(-\frac{7}{3},-\frac{4}{3},-\frac{1}{3}\right)$. Which of the following points lies on this plane?
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Q JEE-MAIN 2020
Suppose $f(x)$ is a polynomial of degree four, having critical points at $-1,0,1$. If $T=\{x \in R \mid f(x)=f(0)\}$, then the sum of squares of...
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